TomTom Rider 40, won't switch on
When i switched it on i saw is was almost empty, so i charged it at my computer.
Just before i was about to leave i disconnected it and tried to turn it on, but i couldnt get in to work.
Now it won't turn on anymore. I have tried the reset action.
(Holding the button 30 second untill drum sound.) The sound never came.
So what to do next, any suggestions?